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Finding the Fourth Proportional to 17,220.33, 25,805.83 and 9,809.49

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Solution

The fourth proportional to 17,220.33, 25,805.83 and 9,809.49 is: 14,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.33 : 25,805.83 = 9,809.49 : x
  2. Step 2: Convert to fraction form
    17,220.33/25,805.83 = 9,809.49/x
  3. Step 3: Cross multiply
    17,220.33x = 25,805.83 × 9,809.49
  4. Step 4: Simplify right side
    17,220.33x = 253,141,853.25
  5. Step 5: Solve for x
    x = 253,141,853.25/17,220.33
  6. Step 6: Final answer
    x = 14,700.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.